The video can be seen at:
http://gprime.net/video.php/sonyrevolution
Update: The video shows DataTiles in action. The DataTiles were presented already in 2001.
The DataTiles system integrates the benefits of two major interaction paradigms: graphical and physical user interfaces. Tagged transparent tiles are used as modular construction units. These tiles are augmented by dynamic graphical information when they are placed on a sensor-enhanced flat panel display. They can be used independently or can be combined into more complex configurations, similar to the way language can express complex concepts through a sequence of simple words.
So this is definitely old news, but still interesting and cool to look at. =)
http://www.csl.sony.co.jp/person/rekimoto/datatile/
http://www.csl.sony.co.jp/publications_e.shtml